We went to the Cave of the Apocalypse in the afternoon (as well as the Monastery which is very close by) in the charming village of Chora, Patmos. We took a tour that was arranged for us by True Greece (that company rocks!). The Cave is small and prophetic. We happen to be religious and it was quite moving, even though one wonders if it was the heat that "got" to St. John (just kidding). That being said, it was quite a spiritual experience for me personally. There is not much to see but worth it if you take a guided tour. There were only a handful of people there at the time we visited. Make sure you attach the Monastery tour with it.
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